121111022202011 has 4 divisors (see below), whose sum is σ = 121111161526872. Its totient is φ = 121110882877152.

The previous prime is 121111022202007. The next prime is 121111022202031. The reversal of 121111022202011 is 110202220111121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121111022202011 - 2² = 121111022202007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121111022202031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68350286 + ... + 70099811.

It is an arithmetic number, because the mean of its divisors is an integer number (30277790381718).

Almost surely, 2^{121111022202011} is an apocalyptic number.

121111022202011 is a deficient number, since it is larger than the sum of its proper divisors (139324861).

121111022202011 is an equidigital number, since it uses as much as digits as its factorization.

121111022202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139324860.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121111022202011 its reverse (110202220111121), we get a palindrome (231313242313132).

The spelling of 121111022202011 in words is "one hundred twenty-one trillion, one hundred eleven billion, twenty-two million, two hundred two thousand, eleven".